Last year, Facebook topped the bill as the number one place to work, but now it has fallen to number seven, just behind LinkedIn. It is Facebook's lowest ranking in the survey since 2015, when it finished in 15th position.

Back in 2017, 84% of the workforce "said they were optimistic about the company's future," a figure that has since dropped to just 52%. And 72% of employees previously said "Facebook was making the world better" — now it's 53%.

One review from November, titled "Six months of strange tech cult," said the company displays a "complete lack of moral responsibility for the world." Another, also from November, lamented "the product is not technology, its [sic] the users."

Under "advice to managers," one employee wrote: "Please get the company out of bad reputation slump... align business objectives with long-term strategy of connecting people and communities."

But Facebook's overall ratings remain positive, with 96% of reviews saying they approve of CEO Mark Zuckerberg at time of writing. One reviewer described it as "Disneyland" for software engineers, and another wrote: "Don't believe all the negative press."